A few more links to various resources

geojson.io is a quick, simple tool for creating, viewing, and sharing maps - supports GeoJSON, KML, GPX, CSV, GTFS, TopoJSON, and other formats.

Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps with a beautiful, easy to use and well-documented API.

Data visualization - D3js and more
NyTimes - taxburden
Nice implementation of interactive graphs - inspiration

Mike Bostock - Towards Reusable Charts
Make your visualization tools reusable

Mike Bostock - examples
Examples from the master himself

D3js first steps
Getting started with D3js

Infocaptor - visualization tool
Nice tool for visualizing data

RAW - visualization tool
Another nice tool for visualizing data

Jason Davies - Wordcloud tool
Flexible wordcloud tool - best I've seen

Periodic table of data visualization
If you need inspiration for visualizing data

Beautiful tool for visualizing molecules
Very nice tool for visualizing molecular structures - using D3js

Interactive Dashboard – Gridster & D3.js
Make your own dashboards with D3js and Gridster

The Big List of D3.js Examples
Tons of examples for D3js

Data visualization tools for the web
List of datavisualization tools for the web

Modular D3js - Datahub Very very interesting :)

Wolfram language - for experts
Wolfram language
Wolfram alpha

Codepen - test your code live
Gotta love codepen

Free fonts
Make ur own fonts from SVG

PHP Forms

SVG and HTML 5
Nesting SVGs
SVG tutorial

SVG Essentials - coordinates
SVG tutorial

Making 3D animations with SVG
Example 3D svg animation

Google Blockly
Visual programming - interesting

Generate random sample data
Generate arbitrary data - 100 entries for free, for testing purposes.

Flintstone -A key/value database store using flat files for PHP

Draftin - Markdown editing and publishing tool
Nice tool but is it free?

Draftin in Pico cms
Maybe it could be ported to GRAV cms

Symfony Framework at a glance
Introduction to Symfony PHP framework

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